This documentary uncovers the brutal atrocities committed by Nazis on Alderney during their occupation in 1941. It explores the harsh treatment, mass graves, and executions inflicted upon slave laborers sent to build Hitler's fortress. Researcher Piers Secunda collaborates with experts to reveal new evidence, exposing the cover-up by the UK government and honoring the victims' humanity. The film sheds light on one of the darkest chapters of British soil, highlighting stories of resilience and unanswered questions.